Plastic optical fibers and processes for producing them

Optical waveguides – Optical fiber waveguide with cladding

Reexamination Certificate

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Details

C385S011000, C385S125000, C264S001240

Reexamination Certificate

active

10562827

ABSTRACT:
A novel optical plastic fiber comprising a core region and having a center line along a longitudinal axis of the fiber is disclosed. The refractive index of the core region increases along a direction going from a periphery portion to the center line in any plane perpendicular to the center line, and the birefringence index of the core region varies along a direction going from the center line to a periphery portion perpendicular to the center line in any plane parallel to the center line and containing the center line.

REFERENCES:
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El-Bakary, M.A. Determination of Refractive Index Profile of Partially and Highly Oriented Fibers Using Double Refracting Interference Microscopy. Journal of Applied Polymer Science, Apr. 1, 2003, vol. 87, No. 14, p. 2341-2347.
Huijts, R. A. et al. The Relation between Molecular Orientation and Birefringence in PET and PEN Fibers. Polymer, 1994, vol. 35, No. 14, p. 3119-3121.
Dugas, J. Birefringence and Internal Stress in Polystyrene Optical Fibers. Applied Optics, Jun. 1, 1994, vol. 33 No. 16, p. 3545-3548.

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